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$128+ Cheap flights from Sky Harbor Intl (PHX) to Boston (BOS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOS
Feb 1 — Feb 81
Sun 2/1
Sun 2/8
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Boston Logan Intl are usually found in January or February, booked 57 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Sky Harbor Intl to Boston

Cheapest flights from Sky Harbor Intl to Boston
Explore the most affordable flight options available from Sky Harbor Intl to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 2, 2026.

This United Airlines deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:38 pmPHX - BOS
1 stop7h 06mUnited Airlines
Sat 1/37:45 amBOS - PHX
1 stop8h 14mUnited Airlines
Deal found 12/30$361
This American Airlines deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:28 pmPHX - BOS
Nonstop4h 51mAmerican Airlines
Sat 1/39:10 amBOS - PHX
Nonstop5h 48mAmerican Airlines
Deal found 12/31$366
This United Airlines deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:38 pmPHX - BOS
1 stop7h 06mUnited Airlines
Sun 1/46:23 pmBOS - PHX
1 stop7h 54mUnited Airlines
Deal found 12/30$400
This American Airlines deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:28 pmPHX - BOS
Nonstop4h 51mAmerican Airlines
Sun 1/46:40 amBOS - PHX
Nonstop5h 54mAmerican Airlines
Deal found 12/30$414
This Delta deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:43 pmPHX - BOS
1 stop8h 31mDelta
Sat 1/36:00 pmBOS - PHX
1 stop8h 31mDelta
Deal found 12/31$443
This Southwest deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:15 pmPHX - BOS
1 stop6h 30mSouthwest
Sat 1/36:45 amBOS - PHX
2 stops8h 50mSouthwest
Deal found 12/30$448

Find flight deals from Sky Harbor Intl to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 2, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$141
(Kiwi.com)

One-way from

$128
(Alaska Airlines)

Popular in

October

Cheapest in

January

Average price

$230

Good round-trip deal

$229 or less

Good one-way deal

$169 or less
Provider with most accurate pricing for Phoenix Sky Harbor Intl-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Phoenix Sky Harbor Intl-Boston Logan Intl flights.
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From Phoenix Sky Harbor Intl to Boston Logan Intl
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One-way flight from Phoenix Sky Harbor Intl to Boston Logan Intl
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Highest demand for flights based on searches. 4% potential increase in price ($15 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Phoenix Sky Harbor Intl to Boston Logan Intl.
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Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Boston Logan Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 2, 2026.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Boston that are best for you.

Fly from

Sky Harbor Intl

Fly to

Boston

Route

Depart

Return

Price

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Wed 1/14

10:19 pm-5:00 am

Nonstop4h 41m

Boston Logan Intl

Sun 1/18

4:50 pm-8:49 pm

Nonstop5h 59m

$167

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Thu 1/15

10:19 pm-5:00 am

Nonstop4h 41m

Boston Logan Intl

Mon 1/19

4:50 pm-8:49 pm

Nonstop5h 59m

$177

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Sat 2/14

11:55 am-10:43 pm

1 stop8h 48m

Boston Logan Intl

Sat 2/21

6:52 pm-11:00 pm

Nonstop6h 08m

$187

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Sat 1/24

1:30 pm-10:55 pm

1 stop7h 25m

Boston Logan Intl

Tue 1/27

2:40 pm-10:45 pm

1 stop10h 05m

$187

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Sat 2/14

11:58 pm-6:55 am

Nonstop4h 57m

Boston Logan Intl

Fri 2/20

5:25 pm-11:42 pm

1 stop8h 17m

$187

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Thu 1/22

10:30 am-8:50 pm

1 stop8h 20m

Boston Logan Intl

Mon 1/26

2:40 pm-10:45 pm

1 stop10h 05m

$197

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Sun 1/25

10:19 pm-5:00 am

Nonstop4h 41m

Boston Logan Intl

Sun 2/1

4:50 pm-8:49 pm

Nonstop5h 59m

$198

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Thu 2/12

7:35 am-5:25 pm

1 stop7h 50m

Boston Logan Intl

Sat 2/21

5:45 pm-11:40 pm

1 stop7h 55m

$207

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Sun 1/25

7:59 pm-6:05 am

1 stop8h 06m

Boston Logan Intl

Sun 2/1

8:20 am-12:33 pm

Nonstop6h 13m

$207

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Sat 2/14

11:58 pm-6:55 am

Nonstop4h 57m

Boston Logan Intl

Thu 2/26

5:15 pm-9:20 pm

Nonstop6h 05m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 21 results
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Compare providers for flights from Sky Harbor Intl to Boston

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sky Harbor Intl to Boston in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Boston flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Phoenix Sky Harbor Intl Airport-Boston flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Phoenix Sky Harbor Intl Airport-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Boston flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phoenix Sky Harbor Intl Airport-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sky Harbor Intl to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Sky Harbor Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phoenix Sky Harbor Intl Airport to Boston

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Boston?

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Boston. Price data was last updated on December 26, 2025.

Booking 57 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phoenix Sky Harbor Intl Airport to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Boston?

Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Boston (average of $115). Flying from Phoenix Sky Harbor Intl Airport to Boston in July is currently the most expensive (average of $231). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to BOS?

Find hourly flight availability from Sky Harbor Intl to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 2, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 29% on flights from Phoenix Sky Harbor Intl Airport to Boston by exploring options for tickets in the evening.

What is the cheapest day to fly from Phoenix Sky Harbor Intl Airport to Boston?

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to Boston. Price data was last updated on December 27, 2025.

Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Boston flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated January 2, 2026.
See what other customers who have flown with Southwest, Delta, and United Airlines from Phoenix Sky Harbor Intl Airport to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,254 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,021 reviews
Southwest
8.0
Very good
4,254 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,132 reviews
Southwest
8.0
Very good
4,254 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,074 reviews
Southwest
8.0
Very good
4,254 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
JetBlue
7.2
Good
2,906 reviews
Southwest
8.0
Very good
4,254 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Boston from Phoenix Sky Harbor Intl?

    Located just 2.6 mi from the city center, Boston Logan Intl is the airport most travelers will use when flying to Boston from Phoenix Sky Harbor Intl. Booking flights from Phoenix Sky Harbor Intl to Logan Intl (BOS) should be relatively easy as there are 8 daily inbound flights from Phoenix Sky Harbor Intl from 8 different airlines.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Boston?

    For as low as $167, JetBlue can have you in Boston from Phoenix Sky Harbor Intl Airport in 4h 41m. The distance between Phoenix Sky Harbor Intl Airport and Boston is about 2293 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Boston round-trip?

    Flying on Frontier is currently your cheapest option to Boston, with prices starting at $71. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and JetBlue, with the lowest prices starting at $82 and $129, respectively. Frontier is currently priced 78% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Boston one-way?

    $80 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and JetBlue, with prices starting from $82 and $98, respectively.

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Boston?

    The top 3 most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Boston are KLM (100%), American Airlines (82%) and Qatar Airways (81%).

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Boston?

    Looking at all options, your cheapest flight can be booked for $114. While the most popular route (Phoenix Sky Harbor Intl - Boston Logan Intl) can be booked for $140 on average, our data indicates $791 when flying from Phoenix Sky Harbor Intl Airport to Boston.

  • Can I find deals for flights from Sky Harbor Intl to Boston that include hotel bookings?

    Yes. In addition to deals on Sky Harbor Intl to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sky Harbor Intl to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Boston.

  • Can I find deals for business class flights from Sky Harbor Intl to Boston?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Boston?

    Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Boston (average of $115). Flying from Phoenix Sky Harbor Intl Airport to Boston in July is currently the most expensive (average of $231). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Medford
Hampton Beach
Watertown
Seekonk
Brockton
Seabrook
Cranston
Lincoln
Lowell
Smithfield
Peabody
Quincy
York Beach
Warwick
Londonderry
Swansea
Old Orchard Beach
Waltham
Chelsea

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Alternative routes for Sky Harbor Intl to Boston

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Sky Harbor Intl to Boston

Discover the top 8 airlines that operate flights from Sky Harbor Intl to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$81Average$190FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$90Average$203FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$135Average$294FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$158Average$335FlexibilityNo cancel feeOn-time63%
DeltaCheapest$189Average$307FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$220Average$332FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$228Average$302FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$237Average$385FlexibilityNo cancel feeOn-time71%

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